critical
10
CWE
416
Advisory Published
Updated

CVE-2012-1974: Use After Free

First published: Wed Aug 29 2012(Updated: )

Use-after-free vulnerability in the gfxTextRun::CanBreakLineBefore function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Firefox<15.0
Firefox>=10.0<10.0.7
Mozilla SeaMonkey<2.12
Thunderbird<15.0
Mozilla Thunderbird>=10.0<10.0.7
openSUSE=12.2
SUSE Linux Enterprise Desktop=10-sp4
SUSE Linux Enterprise Desktop=11-sp2
SUSE Linux Enterprise Server=10-sp4
SUSE Linux Enterprise Server=11-sp2
SUSE Linux Enterprise Server=11-sp2
SUSE Linux Enterprise Software Development Kit=11-sp2
Red Hat Enterprise Linux Desktop=5.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Server EUS=6.3
Red Hat Enterprise Linux Server=5.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=6.3
Red Hat Enterprise Linux Workstation=5.0
Red Hat Enterprise Linux Workstation=6.0
Ubuntu=10.04
Ubuntu=11.04
Ubuntu=11.10
Ubuntu=12.04
Debian Linux=6.0
Debian Linux=7.0
Firefox ESR>=10.0<10.0.7

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-1974?

    CVE-2012-1974 is classified as a critical vulnerability that may allow remote attackers to execute arbitrary code.

  • How do I fix CVE-2012-1974?

    To fix CVE-2012-1974, update your Mozilla Firefox, Thunderbird, SeaMonkey, or any affected application to a version that is 15.0 or higher, or apply the relevant security patches.

  • Which software is affected by CVE-2012-1974?

    CVE-2012-1974 affects Mozilla Firefox versions before 15.0, Thunderbird versions before 15.0, SeaMonkey versions before 2.12, and specific versions of Firefox ESR and Thunderbird ESR.

  • Can CVE-2012-1974 lead to data loss?

    Yes, CVE-2012-1974 can potentially lead to data loss as attackers may execute arbitrary code on the vulnerable system.

  • Is there a workaround for CVE-2012-1974 until I can apply a patch?

    There are no known reliable workarounds for CVE-2012-1974, so it is strongly recommended to promptly update to a patched version.

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